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From Paper Map to GPS: Evolution of Geographic Tools World Explorers' Tool Grade 6 Children's
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Earth's Most Powerful Telescopes Optics for Grade 5 Children's Physics Books
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Elias Howe and His Sewing Machine: U.S. Economy in the mid-1800s: Grade 5 Children's Computers &
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Inventions That Shaped America
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How Are Lasers Used Today? | Light and Optics for Grade 5 | Children’s Physics Books
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Who Discovered Electricity? Beginning Electronics Grade 5 Children's Inventors Books
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Samuel Morse Invented the Telegraph U.S. Economy in the mid-1800s Grade 5 Children's Computers
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How Things Work
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Modern Era Inventions
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How Do VOIP, TV, Pocket-Sized Gadgets and AI Robots Work?
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